Table I.

Clinical dose–volume constraints.

Structure	Constraint
PTV	${\mathrm{D}}_{max}$	$\le 62.5\text{Gy}$
Urethra	${\mathrm{D}}_{5\%}$	$\le 45.5\text{Gy}$
	${\mathrm{D}}_{10\%}$	$\le 42\text{Gy}$
	${\mathrm{D}}_{50\%}$	$\le 40\text{Gy}$
Rectum	${\mathrm{V}}_{32.3\text{Gy}}$	$\le 1.0\text{cc}\left(\text{or}1.2\text{cc}\right)$
	${\mathrm{D}}_{max}$	$\le 38\text{Gy}$
Rectum mucosa	${\mathrm{D}}_{max}$	$\le 28.5\text{Gy}$
Bladder	${\mathrm{V}}_{38\text{Gy}}$	$\le 1.0\text{cc}\left(\text{or}1.5\text{cc}\right)$
	${\mathrm{D}}_{max}$	$\le 41.8\text{Gy}$
Femoral heads	${\mathrm{D}}_{max}$	$\le 24\text{Gy}$